Festival heavyweight Coachella has announced its 2014 lineup, featuring the usual hype-worthy smorgasbord of big names. In one of the main talking points of the announcement, OutKast will be reuniting for the festival, sharing the stage with Kate Nash and Ellie Goulding for both Friday shows. The Saturday lineups won't disappoint, with Muse, Pharrell Williams, and Lorde on the bill. Arcade Fire, Lana Del Rey, and Beck will…